Link for Pics in Iowa
https://www.flickr.com/photos/iowadot/sets/72157660109549471/

Link for the AASHTO Quick video
https://www.youtube.com/watch?v=EUdFdAF831g&feature=youtu.be

Link for the TRAC program in Connecticut Mr. Bell Taught Summer Program 2015
https://www.youtube.com/watch?v=ZaT_qcENRwU